Tooth-brush.



F. H, BURST.

TOOTH BRUSH.

APPLICATION FILED APR.17,1912v 1,085,240, Patented Jan. 27, 1914.

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TQOTH-IBRUSH.

Specification of Letters Patent.

Patented Jam, 1914.

Application filed April 17, 1912. Serial No. 691,305.

To all i071 0111 it may concern Be it known that I, FREDERICK H. Boner, a citizen of the United States, residing at Philip, in the county of Stanley, State of South Dakota, have invented certain new and useful Improvements in Tooth-Brushes; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to tooth brushes and the object of the invention is to provide an improved and simple form of tooth brush having a novel form of handle in the form of a tube adapted for securing the brush therein in reverse positions, as when in use or for retaining the same from exposure to dirt or dust when not in use.

In carrying out the invention I provide a tooth brush which comprises a handle in the form of a cylinder interiorly threaded at one end for the attachment of the shank portion of the brush head, such brush head having a cylindrical portion exteriorly threaded and having a. double ferrule for tightly closing the ends of the tube when the brush is in use or inclosed within the handle.

The invention further consists of a tooth brush of the character above specified in which the attaching portion of the brush head is provided with an apertured extension adapted for conveniently suspending the brush and in which the bristles of the head are attached to a slotted plate in a novel manner and secured to the head in a strong and durable manner.

iVith the above and other objects in view, the invention consists of certain combinations and arrangements of parts as will be hereinafter more fully described, claimed and illustrated in the accompanying drawings, in which:

Figure 1 is an elevational view of the device as in use. Fig. 2 is a sectional view of the container with the brush therein, be-

ing in a reverse position from that shown in Fig. 1. Fig. 3 is a bottom plan view of the brush head and shank portion, with the bristles removed. Fig. 4 is a cross sectional view of the device. Fig. 5 is a detail perspective view of the attaching plate for the bristles. Fig. 6 is an enlarged longitudinal sectional view of a portion of the attaching plate for the bristles, to more particularly illustrate the manner of securing the bristles thereto.

Referring more specifically to the drawings, wherein like reference characters designate similar parts throughout the several views, the numeral 10 designates the handle which is in the form of a cylindrical tube or container having one end of hemi-spherical form as shown at 11 while its opposite end is open and enlarged in thickness as shown at 12, such portion being interiorly threaded for the attachment of the brush head in a manner to be hereinafter more fully described.

The brush head is indicated by the numeral 13 and like the handle member 10 is formed of metal, vulcanized rubber or the like and said head has its under portion hollowed out as shown at 14, or being bent in such form as to produce a depression having the flanged side portions 15 for the retention of the bristles in position when ongaged within a securing plate to be hereinafter more fully specified. The shank portion 16 of the brush head 13 is enlarged in thickness as shown and terminates in a cylindrical portion 17 which has a reduced extension 18 provided with an aperture 19 for suspending the device when the brush is inclosed in the handle or container 10, and hung upon a hook or nail at any convenient place and thereby free from dirt and dust usually caught on an unprotected brush. The enlarged cylindrical portion 17 is provided with a central double ferrule 20 having oppositely extended flanged portions 21 and upon opposite sides of said ferrule, said enlarged portion 17 is oppositely threaded for engagement with the interior threads at the enlarged portion 12 of the handle or container 10 so as to adapt the head to be secured to the handle in a manner as shown in Figs. 1 and 2 of the drawings. In either of the positions mentioned, that is when the brush head is projected from or secured within the tube or container, the joint between the cylindrical portion 17 and the adjacent threaded portion of the tube is liquid tight, thus making the device sanitary and very convenient to carry in a valise without getting dirty or staining other articles carried therein such as with an ordinary brush.

It will be further observed that by reason of the opposite flanged portions 21 of the ferrule 20, when the brush head is secured into the handle, in the position shown in Fig. 2 of the drawings.

In order to secure the bristles 23 to the brush head 13 and within the depression 14 thereof, I provide a plate 24 which is provided with a plurality of rows of apertures 25 properly spaced. apart. and disposed in staggered relation as shown, such plate being adapted to properly fit in the surrounding wall of the depression 14 and between the flanged portions 15 thereof, after which said flanged portions are bent or otherwise extended inwardly as shown at 26 to prevent displacement of the plate 24. The bristles 23 are disposed in staple fashion through the adjacent pairs of apertures 25 in the respective rows and in order to dispose the bristles therein, the outer rows of apertures communicate with the opposite longitudinal edges of the plate by slots as shown at 27 and the central portion of the plate is severed as shown at 28 to connect adjacent pairs of apertures when the severed portions are turned 0r bent back so that the bristles can be disposed through the apertures and when the bristles are in place, said severed portions are pressed back into place and the bristles are thereby tightly held in position and can not be removed without breaking the bristles. The depression 14 is also filled with soft rubber, cement or other similar material 29 so as to entirely fill the space between the back of the brush head and the plate 24 so as to form a more secure and solid fastening means for the plate and bristles mounted thereon.

It is further obvious that the tubular handle or container 10 may be filled with any sterilizing fluid or substance when the brush is secured therein as shown in Fig. 2 of the drawings, so as to render the bristles and brush perfectly sterile and antiseptic, in the hours of disuse while the parts can be readily taken apart and cleaned in any desired manner.

It will thus be seen that I have provided a very simple and desirable form of tooth brush for the purposes stated, the features of the invention being the reversibility of the brush head when closing the latter Within the handle or projecting the same therefrom when in use and producing a liquid tlght joint at the attachment point and also the specific manner of securing the bristles to the brush head to avoid the necessity of soaking the bristles to prevent the same from coming out.

I claim:

1. In a tooth brush, a head comprising, a plate having a plurality of tuft receiving apertures and slits communicating therewith forming tongues adapted to be bent Ieut and back, to form bristle clamping memers.

2. Abrush of the class described comprising a head having a depression, a plate fitted therein and having a plurality of rows of tuft receiving apertures arranged in staggered relation, certain of the apertures having slits communicating with the edges of the plate, said plate having transverse slits communicating with certain of the apertures and having longitudinally extending slits connecting the transverse slits in pairs, and tufts of bristles in the apertures and held by the parts of the plate between the aper-. tures.

3. A brush of the class described comprising a head having a depression and formed 7 with surrounding fianged portions, a plate of bendable material having a plurality of- 

